He may not be able to compete in the Kentucky Derby, but he is surely as popular as the winner.
And with appearances on Oprah and across the U.S. it has certainly been an eventful first year for Einstein, the world's smallest horse, as he approaches his birthday.
Standing just 20inches tall, the horse attracted huge media interest when he was born in April last year.
Cute: Standing only 20 inches high hasn't stopped Einstein becoming quite a celebrity with appearances on Oprah and across the U.S.
Thousands queued at a farm in Barnstead, New Hampshire for a glimpse of him, but while human interest was high, he didn't have many friends of his own breed.
Now his quest to find buddies and his life at home with owners Charlie Cantrell and Rachel Wagner in Gilmanton, New Hampshire, will be published in a new a book to celebrate his birthday.
'This has been a remarkable year for us and for Einstein,' said Mr Cantrell, 44, who bought Einstein for their small farm along with his wife Rachel.
'We are both horse enthusiasts and we decided to get ourselves a miniature horse from the renowned breeder Judy Smith at a Miniature Horse Farm in New Hampshire.
'Einstein is the smallest horse on record ever to survive and when the news got out to the media the level of interest was incredible.
'The average weight of a newborn miniature horse is eighteen pounds. The average height at birth is twenty-one inches.
Einstein is all the remarkable because he shows no dwarf characteristics and is simply a very small miniature horse.
His mother Finesse stands a relatively tall 32 inches and his dad Painted Feather measures 30 inches.
Little and large: Einstein's stallion friend Playboy towers over him as the pair meet up at home in New Hampshire
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